Disk drill.



W. FETZER.

DISK DRILL.

APPLICATION man AUGJS. I914.

Patented Apr. 1, 1919.

WILLIAM FETZER, 0F SPRINGFIELD, ILLINOIS.

DISK DRILL.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Application filed August 19, 1814. Serial No. 857,643.

To all whom it may concern:

Be it known that I, lVILLIAM Fn'rznu, a citizen of the United States,residing at Springfield, in the comity of Sangamon and State ofIllinois, have invented certain new and useful Improvements in DiskDrills, of which the following is a specification, reference being hadtherein to the accompanyin drawing.

This invention relates to improvements in disk drills and aims toprovide an improved device of this nature adapted to produce arelatively wide seed bed ortrench and to distribute the seed throughoutthe full Width of the same. I

An object of the invention is to provide improved means for enlargingthe furrow fr formed by the drill disk, and means for distributing theseed within the furrow.

A further object of the invention is the provision of such means in asimple andpractical form in and asa part of a seed boot structure.

The invention contemplates the use of a detachable disk scraper and alsoa seed boot construction, in which the lower part of the boot isdetachable, and a still further object of the invention is to provide animproved construction for detachably connecting a scraper, or the lowerportion of the seed boot to the main body portion thereof whereby thedetachable parts will be firmly supported in operative position againstlateral twisting or other movement relative to the main body part of theseed boot.

The invention, with other objects and advantages thereof, and the novelconstruction, combination and arrangement of parts comprising the samewill be understood from the following detailed description whenconsidered in connection with the accompanying drawings forming a parthereof and illustrating one embodiment of the invention.

In the drawings:

Figure 1 is a side elevation of a disk drill constructed in accordancewith the present invention,

Fig. 2 is a horizontal section on the line 2-2 of Fig. 1,

Fig. 3 is a bottom plan of the disk and lower end of the seed boot,

Fig. 4 is a detail perspective, on an enlarged scale of the furrowshaping and seed distributing means.

-In the drawings, in which is illustrated by Way of examplea preferredembodiment of the invention, 1 designates a drag bar and supported onthe drag bar for rotation is a disk 2. These parts may be of any wellknown or approved construction. 3 designates a seed boot, which issupported in any suitable manner. In the drawings the seed bootis shownas provided with a forwardly extending arm 4. connected to the drag barby a bolt 5, the arm extending downwardly om this part and beingconnected with the axle 6 of the disk.

In accordance with my present improvements, the seed boot or tube isprovided with a relatively broad forwardly and downwardly extendingdistributing end 7 comprising oppositely disposed angularly relatedshare like portions or wings 8. The seed boot 3 is supported so that thebroad delivery end 7 thereof is positioned to follow in the furrowformed by the drill disk and to extend to a depth substantially equal so{the depth of the furrow formed by said is r.

In the operation of the device the drill disk pulverizes and opens up afurrow in the usual way. The broad delivery end portion 7, working inthe pulverized soil and furrow prepared by the drill disk surface servesto reshape, enlarge and broaden the furrow at its base. It also servesto withhold the loose pulverized soil from falling back into the furrowuntil after the seed has been deposited therein. In this connection itwill be noted that the portions or wings 8 extend well to the rear andin addition to their furrow shaping function also act to divert anddistribute the seed into the seed bed or trench thus formed, the spacebetween the portions or wings 8 forming a relatively broad seed outletfor the boot. Extending upwardly from the forward part of the broaddelivery and furrow shaping end 7 of the seed boot is a scraper 9 forthe drill disk 1, said scraper being curved as shown to engage theconvex side of the disk and being adapted to keep the same free and toassist in opening the furrow.

1 preferably form the furrow shaping and delivery and distributing meansfor the seed boot as a separate part, as illustrated in the drawings,and detachably connect the same to the main body portion of the boot sothat said means can be readily removed when worn and a new partsubstituted or other parts used interchangeably therewith to suit thedifferent conditions of the soil.

An important characteristic feature of the invention resides in thespecial connecting means provided whereby a strong rigid connectionbetweenthe parts is afforded. The connecting means comprises thefollowing construction. The main body portion 3 of the seed tube isprovided with a reduced lower portion 10 and a lateral projection or lug11. The lug preferably is positioned at the rear of the reduced portionnear "the top thereof, and a shoulder 12 extends around the upper end ofthe extension from each side of the said projection or lug. The part tobe connected to the main body portion of the boot, in this instance, thepart 7 has a tubular extension or neck 13 to snugly fit and embrace thereduced portion 10, with its upper end abutting the shoulder 12, thereduced portion being substantially elliptical shaped in cross sectionand thetubular neck portion correspondingly formed. The proj ection orlug ll is provided with a bolt aperture 1ft, and the tubular extensionor neck portion 13 is open at one end and provided with spacedextensions or cars 15 having bolt apertures 16, said extensions or carswhen the tubular extension or neck portion 13 is fitted in place on thereduced portion 10 with its upper end in engagement with the shoulder 12being adapted to extend coincidently with and fit against the projectionor lug 11 with the bolt apertures 16 of the ears in alinen'ientwith thebolt aperture 14 of the projection or lug. A bolt 19 is passed throughthe apertures in the extensions or cars 15 and lug 11, and the partsfirmly secured together by screwing up the clamp nut 20 on the end ofthe bolt. It will be observed that this constructio affords a verysimple and efficient connecting means. The parts can be quickly attachedand detached and when connected together are firmly held againstmovement relative to each other the shoulder 12 serving to preventupward canting of the part 7, and the projection or lug 11 holding thepart 7 against turning or twisting laterally, the substantiallyelliptical forn'iation of the reduced portion 10 also serving to resistlateral play.

In the drawings I have illustrated a pre ferred embodiment of theinvention and I desire it to be understood that minor changes andobvious modifications of the particular construction shown, within thescope of the appended claims may be made without departing from thebroad principles of the inventlon.

What I claim is:

1. In a disk drill, the combination with an opening and pulverizing diskdisposed at an angle to the line of draft, of a seed boot having arelatively broad delivery end portion comprising oppositely disposedrearwardly diverging share like parts, said delivery portion beingadapted to work in the furrow formed by the disk to enlarge the same,the relatively broad end portion acting to withhold the soil fromfalling into the furrow until the seed is deposited there in andaffording a relatively wide seed outlet for the boot to distribute theseed into the furrow throughout the full width of the furrow thusformed.

In disk drill, the combination with an opening and pulverizing diskdisposed at an angle to the line of draft, of a seed boot having arelatively broad lower end portion comprising oppositely disposedrearwardly diverging share like parts, said lower end portion beingarranged to work in the furrow formed by the disk to enlarge the same atits base, the relatively broad lower end portion providing a relativelywide seed outlet for the boot, and a scraper secured to and extendingupwardly from the forward end of said lower end portion.

3. In a disk drill, the combination with an opening and pulverizing diskdisposed at an angle to the line of draft, of a disk boot provi dcd witha spreader or widening base comprising oppositely disposed rearwardlydiverging share portions having their adjacent edges joined together,and a scraper arranged forwardly of said base.

f. In a disk drill, the combination with an opening and pulverizing diskdisposed at an angle to the line of draft, of a disk boot providod withaspreader or widening base comprising oppositely disposed rearwardlydiverging share portions having their adj acent edges joined together,and a scraper extending forwardly from said base at a point where theshare like portions adjoin each an opening and pulverizing disk disposedat an angle to the line of draft, of a disk boot having widening wingsat its base to widen the seed furrow and to make ledges or ridges ateither side thereof, and a scraper for the disk extending forwardly fromsaid base.

7. In a disk drill, the combination with an opening and pulverizing diskdisposed at an angle to the line of draft, of a seed boot, and a metalpiece for the seed boot having a shin and spreading wings extending froma common forward edge of the shin rear- Wardly in opposite diagonaldirections from said shin, and a scraper extending forwardly from saidshin.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

WILLIAM FETZER.

Witnesses:

Z. J. CUTLER, I. 0. RYAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

